Changeset 38157

Timestamp:

07/26/2016 10:05:39 PM (8 years ago)

Author:

azaozz

Message:

TinyMCE, wpView: bail early when the iframe node is not attached to the DOM. We can't load any HTML in it as here is no iframe.contentWindow in these cases.

See #36434.

File:

• trunk/src/wp-includes/js/mce-view.js (modified) (1 diff)

trunk/src/wp-includes/js/mce-view.js

@@ -539 +539 @@
                         dom.add( node, 'span', { 'class': 'wpview-end' } );
                     } );
+
+                    // Bail if the iframe node is not attached to the DOM.
+                    // Happens when the view is dragged in the editor.
+                    // There is a browser restriction when iframes are moved in the DOM. They get emptied.
+                    // The iframe will be rerendered after dropping the view node at the new location.
+                    if ( ! iframe.contentWindow ) {
+                        return;
+                    }
 
                     iframeDoc = iframe.contentWindow.document;